CP-51988: Fix functions not work for remote_pool repo

[BengangY]

1. remote_pool repo doesn't support periodic sync updates.
2. Periodic sync updates should be auto-disabled when calling set_repositories and add_repository for remote_pool repo.
3. Update UT.

[xueqingz]

Java SDK build failed on:

    /**
     * If the bundle repository or remote_pool repository is enabled, it should be the only one enabled repository of the pool.
     */
    public static class RepoShouldBeSingleEnabled extends XenAPIException {
        public final String repo-type;

        /**
         * Create a new RepoShouldBeSingleEnabled
         */
        public RepoShouldBeSingleEnabled(String repo-type) {
            super("If the bundle repository or remote_pool repository is enabled, it should be the only one enabled repository of the pool.");
            this.repo-type = repo-type;
        }
    }

Consider change the name "repo-type" to "repo_type" ?

[BengangY]

Java SDK build failed on:

    /**
     * If the bundle repository or remote_pool repository is enabled, it should be the only one enabled repository of the pool.
     */
    public static class RepoShouldBeSingleEnabled extends XenAPIException {
        public final String repo-type;

        /**
         * Create a new RepoShouldBeSingleEnabled
         */
        public RepoShouldBeSingleEnabled(String repo-type) {
            super("If the bundle repository or remote_pool repository is enabled, it should be the only one enabled repository of the pool.");
            this.repo-type = repo-type;
        }
    }

Consider change the name "repo-type" to "repo_type" ?

Updated to "repo_type" and it passed now.